. stephen elop takes over as c.e.o. later this month. he was the head of microsoft's biggest division by sales, its business software unit. he takes over a company that sells more mobile phones than anyone else. in the second quarter, nokia's name was on more than one out of every three mobile phones. but, critics say, it is behind in the smartphone market. it is expected to answer critics next week with its n8 smartphone. it will be unveiled in london. one question is whether or not any u.s. carriers have signed on. shares were up 2% on three times its usual volume. the big drop in april came when nokia cut its profit outlook. the trio nokia is competing with for phone software is google, research in motion and apple. tech consultant firm gartner thinks google's android phone software will be the second biggest by the end of this year. nokia remains the biggest. this threesome made fractional moves today. and, the f.d.a. o.k. for a return to the market of a potassium drug provided for some big moves for its maker, k.v. pharmaceutical, and its competitor watson. k.v. rocketed up 74%.